You need to fight the Mini-Boss on the (I think) 6th floor to get a special item (it's a swipe card). There are two of those. From the 3th floor on, you need to look all over the floor to find Mini-Bosses to fight, so you get the swipe cards from them. Once you have both, apply and try both on the locked doors. The first one will open the door to a third Mini-Boss, the second one is needed to open the door to Naoto.
Naoto's Dungeon is the most fun in my opinion, have fun~

When you get to Namatame's hospital room you will be asked some questions. Answer 1: Wait a second here...
Answer 2: We're missing something
Answer 3: Namatame's true feelings
Answer 4: Something's bothering me
Answer 5: We're missing something
Answer 6: Calm the hell down!
12/5 Evening after collecting info, when you're asked who the culprit is choose Adachi you put something else and not only will you be wrong but you'll get the bad ending, You have only 3 chance's to get it right. Make sure you beat him before 12/23 to get the christmas scene with one of your social link girls, Recommend Rise you get a good item that gives you 50% more SP but that is up to you. They all give you some type of item. True ending : there will be a time skip a day before you have to leave visit all your social link friends with maxed out social link. Once you have done that you will be asked if you want to return home select No, Head to the Junes elevator examine it select No again,Examine it again and select I'm not finished yet, Then you'll be asked if you want to visit the food court one more time select Yes. After you realize there's still something else to do go to the samegawa flood plain by the riverbed talk to Dojima, then head to the Shopping district (South) enter the Velvet room obtain Orb of sight. Next talk to the gas station attendant. Question him until he reveals he was really the one behind everything and he was the one who gave you your power. Real identity is Izanami-no-okami.

Not sure, put you should just take the skill Physical Repel from Rangda Magician Arcana. It learns Physical Repel. sorry if this is not what you're looking for but it really is better. If you're not happy with the answer I'll find out for you and post it later.

You gotta grind a little bit.I mean level up your personas.You and your teammates must be at level 27-30.That's the only way bro.And you must visit the shopping district and sell the materials you have.Then buy weapons/armors.Just grind as much as you can and there shouldn't be any problem.

Play from the beginning in the same difficulty (beginner) and try to not die, so you won't lose any moon tsukubame(item that revives you once you die) which only given in the beginning and can't be earned. so try to level up as much as you can in each level by keep returning to entrance and fight back the enemies till the top until you are strong enough. -Answer by:patrick airleon

Get a persona that repels or nullifies Light and Darkness. As well as strong or Nullifies/Repels/Absorbs physical attacks, Make sure the persona is strong. I recommend Lucifer, Helel, Asura. As for Light and Darkness attacks Homunculus will do, Just make sure you have a good number of them. -Answer by:Personaizanagi4

He is in the Samegawa flood plain talk to him and say "She is different on TV" and then go back to Yasogami High School press the square button and select "Practice building" then go to practice building F2 there will be a fat Guy.He is rise's biggest fan talk to him and he will give you the info then go back to the Samegawa floodplain Talk to the Paparazzo again and trade the info You got and Then Report to Teddie! Good luck!

She is not weak to anything therefore you can only pound the crap out of her with all youve got but I suggest getting to lvl 16 because she herself is lvl 15, as for her prince she can only have one of those therefore take him down to daze by using ice which he is weak against and after he falls due to daze attak yukiko again until he gets up. one you deafeat the first prince as I said she can have no others.
Tskune

A2:

Why don't you try gain a little more level than always use bufu to yukiko's shadow but remember of her prince charming his weaknes is bufu

After you beat him there will come a point when they ask you if you want to go home, say no. Then you have to go around and talk to all of the people who's social links you've maxed out, then go to Junes and say there's still more you need to do. After that, you'll be led to the true source of your persona abilities and the person behind it all, Izanami. If you beat her you get the true ending.

When teleports... :
1. Don't Panic
2. Move backward .. means make the road visible - be connected -
3. open the door... fight the enemies
4. when you teleport again... do step 2 and 3
5. and you will find Yukiko door
6. win the fight

A2:

If you teleported, the back way will opens for you(you can pass without being teleported).the first thing you should do is approaching yukiko's shadow with her monster in the east door(let yourself teleported till the south door then move backward).after you beat the monster, you will get glass key to open the locked doors. -Answer by:patrick airleon

I only know ones for the Gameshark here are some codes (mastercode) 90424CD8 0C1092DE

(Max/Infinite Money) 2079B68C 3B9AC9FF

(Max money Buying/Selling items) 20105FDC AC66B68C

This next one comes with quite a surprise start a new game or new cycle with this one and you will have all items X99 I got the Omnipotent Orb thanks to this which Nullifies everything except Almighty damage
(Infinite Items/Gain 99)
1013C8F4 00000000
00106640 00000001

That's All I know. They do work. Personally I think this site lacks this kind of information. What some people consider cheats are actually just hints. I hope this help's, If this is not what you meant then I am sorry.

If you have Norn or Trumpeter,Debilitate is your best bet.If not,just get a persona that Repels,Nullifies or Drains Phys Dmg.Make sure your personae have high stats,especially Endurance and Agility.However,beware of his elemental attacks,including Medigola(Almighty) and raise your defense and lower his atttack when he casts the fog.when that's done,just guard until he attacks and take a turn to heal.The rest will speak for itself.The worst possible situation would be if you used Kaiwan or Decrabia LOL.